
.login-container {
    height: calc(100% - 50px);
  
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .login-dialog {
    width: 400px;
    height: 400px;
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 10px;
  }
  
  /* 标题 */
  .login-dialog h3 {
    text-align: center;
    padding: 50px 0;
  }
  
  /* 针对一行设置样式 */
  .login-dialog .row {
    width: 100%;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  .login-dialog .row span {
    width: 100px;
    font-weight: 700;
  }
  
  #username, #password {
    width: 200px;
    height: 40px;
  
    font-size: 20px;
    line-height: 40px;
    padding-left: 10px;
    border: none;
    outline: none;
    border-radius: 10px;
  }
  
  #submit {
    width: 300px;
    height: 50px;
  
    background-color: rgb(5,187,251);
    color: white;
  
    border: none;
    outline: none;
    border-radius: 10px;
  
    margin-top: 20px;
  }
  
  #submit:active {
    background-color: #666;
  }